PENTATONIC

Hello everybody, sorry for my english but I live in Italy,I'd like to knowsome information on how to play without using pentatonic scales,if I should improve my skill in using other scales and which are the most usefull scalesto play pop/rock.Then i need a help to know how i should set treble,mid,low onmy amplificator for slap tecnique(i have a ken smith bass,how is it?)and the equalization for a warm sound and the right strings for each tecnique.thank you very much.